Knob



FIG. 1 is the front/right-side/top perspective view of a knob showing our new design;

FIG. 2 is the front elevational view thereof;

FIG. 3 is the rear elevational view thereof;

FIG. 4 is the left-side elevational view thereof;

FIG. 5 is the right-side elevational view thereof;

FIG. 6 is the top plan view thereof;

FIG. 7 is the bottom plan view thereof; and,

FIG. 8 shows the knob in use.

The broken lines shown in the drawings are for illustrative purposes only and form no part of the claimed design. 

CLAIM The ornamental design for a knob, as shown and described. 